O2 Nose Filters with 3M Filtration Technology for Allergy Relief, Dust, Pollution - Medium - Pack of 10 with Travel Case

They are perfect for this challenging time and wearing them doesn’t freak out others on the street or in the shop ;) easy to breath

I should have gotten the large but I like these. Perfect for wearing while doing gel nails. Keeps my lungs dust free doesn't interfere with my glasses. They are a little hard to adjust but they work well.

I am highly allergic to pollen! I will say this is the best $10 I’ve ever spent. Today was the first time I’ve been able to be outside for a long period of time without sneezing, or problems breathing. I ordered a medium and fits great!!

Unfortunately, the sizing of these O2 Nose Filters seems not to be considered properly—they don’t fit everyone. The filtration itself is probably great, but they didn’t fit my nostrils and felt uncomfortable to wear. It’s disappointing because the product seems useful, but the “one size fits all” claim didn’t work for me

I have had a "runny nose" my whole life. I carry a handkerchief or tissues at all times, and frequently I am subject to sneezing 10 or 12 times in a row. When I work in my shop I wear an N 95 mask and I realized I don't sneeze, or have my nose run, in two places, when I am wearing the mask, or in the shower. So when I found these little filters that go in your nose I decided to try them. I read the reviews and learned it might be uncomfortable wearing them and everybody has a different size nose. After some research I ordered the sizing package from O2 because I could try the product and learn what size I needed. First size. If you order these you will find 4 sizes, for me it was the medium that worked best but the large actually fit more snugly but they were just too uncomfortable to wear for long periods. I found that after adjusting to feeling like your nose is dry and you want to get out whatever is in there, I could wear the medium size all day. But here is the bottom line. I have not sneezed for three days and my nose rarely runs anymore as long as I wear the filters. This was frankly a small miracle. I am looking forward to wearing them on airplane flights.

U used the other brand before, it was really effective for my allergy. But this one was hard to breathe, maybe too thick idk, I ended up using my mouth to take a deep breath occasionally still no relief after hours of use. Size was just right though…(